Precision Profiling: A Guide to Pulling Manual Espresso with the Flair 58

Essential Tools and Materials

To execute this procedure with precision, gather the following gear:

• Flair 58 manual espresso press
• High-quality burr grinder capable of espresso-fine settings
• Acaia Lunar or similar Bluetooth-enabled scale
• SE Profiler app for real-time flow tracking
• Puck screen (mesh filter) and a 58mm tamper
• Kettle capable of reaching boiling point

Step-by-Step Instructions

1. Thermal Preparation

Start by engaging the electric preheating system on the brew chamber. Set the controller to the highest heat setting—indicated by three green lights. While the chamber warms, boil your water. Manual brewing relies heavily on thermal stability; if your equipment is cold, your extraction will fail.

2. Dosing and Puck Prep

Grind 18-20 grams of fresh coffee. Distribute the grounds evenly and tamp with firm, level pressure. Place the mesh puck screen on top of the coffee bed. This step is non-negotiable for the Flair 58 because the internal dispersion screen is slightly smaller than the 58mm basket. The mesh screen ensures water hits the puck uniformly rather than creating a central channel.

3. The Pre-Infusion and Bloom

Lock the portafilter into the group head and fill the chamber with boiling water. Slowly raise the lever to draw water into the head space. Gently push the lever down until the pressure gauge reads three bars. Hold this position for 10-15 seconds. This "bloom" phase saturates the puck and expands the coffee fibers, which helps prevent channeling during the high-pressure phase.

4. Pressure Profiling and Extraction

Increase your force until the gauge hits nine bars. As the shot progresses, you must account for puck deterioration. As solids dissolve, the puck offers less resistance. If you maintain nine bars of pressure, the flow will accelerate too quickly, leading to over-extraction. Watch your scale or the SE Profiler app. When the flow rate starts to climb above 1.5g per second, slowly ease off the lever. You are mimicking the natural decline of a vintage lever machine, tapering down to perhaps 5-6 bars of pressure by the end of the shot.

Tips and Troubleshooting

• The Vacuum Move: When you reach your target yield (e.g., 40g), pull the lever up sharply. This creates a vacuum that stops the flow instantly and prevents a messy drip.
• Frame Flex: If you notice the stream leaning toward the front of the machine, don't panic. High torque causes the Flair 58 frame to flex slightly, which makes the machine unlevel. This is a physical quirk, not necessarily a sign of a bad puck.
• Salvaging a Shot: If your grind is too fine and the lever feels stuck, extend your pre-infusion. Let the water sit at 2-3 bars for 30 seconds to soften the puck before attempting the full nine-bar push.

Expected Outcome

By applying these techniques, you move beyond "guessing" and into intentional profiling. You will produce espresso with higher clarity and sweetness than standard machines provide. The manual lever allows you to feel the resistance of the coffee, giving you a direct connection to the chemistry of extraction.